How to draw GMSPolyline slowly and smoothly in iOS?

Question

I'm able to draw GMSPolyline on GoogleMaps with array of locations like this

GMSMutablePath *path = [GMSMutablePath path];

    for (int i = 0; i <anotherArray.count; i++) {

        NSString *string1 = [anotherArray2 objectAtIndex:i];
        NSString *string2 = [anotherArray objectAtIndex:i];
        [path addCoordinate:CLLocationCoordinate2DMake(string1.doubleValue,string2.doubleValue)];
    }

        GMSPolyline *rectangle = [GMSPolyline polylineWithPath:path];
        rectangle.strokeColor = [UIColor blueColor];
        rectangle.map = mapView_;
        rectangle.strokeWidth = 2.0f;

But the locations I'm getting from backend server.

So I have to refresh every 10 seconds,getting new locations and adding it to existing path. These are all working fine.

But when I am adding new locations to existing path is moving very fast.

Cause I have a GMSMarker at starting of path and it is looking like jumping from one place to another place.

So how can I animate GMSMarker like slowly moving from one place to another place?

score 0 · Accepted Answer · edited May 23 '17 at 12:16

Check on this tutorial. It states how to draw the route lines on the map using the GMSPolyline class. From this related SO thread:

Change your else block to be something more like this:
[CATransaction begin];
[CATransaction setAnimationDuration:2.0];
marker.position = coordindates;
[CATransaction commit];
We enable you to use Core Animation for animating Google Maps.

For a worked sample, please see AnimatedCurrentLocationViewController.{c,m} in the SDK sample application.

Also based from this SO post, avoid using 1px stroke-width of line. Instead, use 4px stroke-width. You can also check on this GitHub sample.

Thanks for detail clarification.let me check – Himanth Sep 20 '16 at 17:11 — Himanth, Sep 20 '16 at 17:11

How to draw GMSPolyline slowly and smoothly in iOS?

1 Answers1